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Science | Transportation | Engines & Equipment

Engines and construction equipment are all complex machines. How do some of these engines work, and how do they help us construct buildings and structures?

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What force causes a 3-pole motor to spin one way and not the other?

There is a force that causes a 3-pole motor to spin in one direction and not the other. What exactly is this force and how does it prevent the motor from spinning in another direction. Find out the answer to this question in this article from HowStuffWorks.


Inside a Competition Tractor

 Inside a Competition Tractor

A competition tractor is a modified tractor that is used in tractor pull races. Check out pictures of the inside of a competition tractor. See more »

How a Block and Tackle Works

 How a Block and Tackle Works

A fascinating article that describes how a block and tackle (as well as levers and gears) works! See more »

How Steam Engines Work

 How Steam Engines Work

Steam engines powered all early locomotives, steam boats and factories -- they fueled the Industrial Revolution. Learn how the steam engine produces power! See more »

How Tower Cranes Work

 How Tower Cranes Work

Tower cranes rise 150 feet in the air and lift up to 19 tons. Plus, they actually build themselves! They're simply amazing. Learn how these structures accomplish such feats. See more »

How Two-stroke Engines Work

 How Two-stroke Engines Work

A car engine uses a four-stroke cycle -- how can two strokes accomplish the same tasks? Learn all about the two-stroke engine, where it's used and how it compares to a four-stroke. See more »

How Van de Graaff Generators Work

 How Van de Graaff Generators Work

Van de Graaff generators are famous for producing static electricity. Learn about Van de Graaff generators and find out why Van de Graaff generators were invented. See more »